Tool 1 - Science Involves making Models

Last updated at June 25, 2026 by

Tool 1 - Science Involves making Models - Class 9 Chapter 1 Science - Concepts

part 2 - Tool 1 - Science Involves making Models - Concepts - Chapter 1 - Exploration: Entering the World of Secondary Science - Class 9 (Exploration)
part 3 - Tool 1 - Science Involves making Models - Concepts - Chapter 1 - Exploration: Entering the World of Secondary Science - Class 9 (Exploration) part 4 - Tool 1 - Science Involves making Models - Concepts - Chapter 1 - Exploration: Entering the World of Secondary Science - Class 9 (Exploration) part 5 - Tool 1 - Science Involves making Models - Concepts - Chapter 1 - Exploration: Entering the World of Secondary Science - Class 9 (Exploration) part 6 - Tool 1 - Science Involves making Models - Concepts - Chapter 1 - Exploration: Entering the World of Secondary Science - Class 9 (Exploration)

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Transcript

Topic 1 • Concept Science Involves Making Models Model means A simplified version - keep only what matters, ignore the rest Topic 1 + Concept A Model of the Heart Study how the heart beats Keep: the heart model Ignore: cells, bones, extra detail Topic 1 + Concept A Model of Water Keep: hydrogen and oxygen Ignore: tap water or river water Only what matters to the question Topic 1 + Concept Will the ball go for six? 1 Mass of the ball relevant 2 Speed of the shot relevant 3 Direction of the shot relevant 4 Grass on ground / teams ignore Topic 1 • Concept Meghnad Saha Found: a star's colour depends on its temperature His model: a star is just hot gas Ignored the complicated extras Topic 1 • Concept In Short Keep only the relevant things Ignore the extras That is a scientific model

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